x, y, 
x^8+4*x^6*y^2+6*x^4*y^4+4*x^2*y^6+y^8-2*x^6*y-6*x^4*y^3-6*x^2*y^5-2*y^7-5*x^6-11*x^4*y^2-7*x^2*y^4-y^6+10*x^4*y+12*x^2*y^3+2*y^5+4*x^4+4*x^2*y^2-8*x^2*y
8*x^7+24*x^5*y^2+24*x^3*y^4+8*x*y^6-12*x^5*y-24*x^3*y^3-12*x*y^5-30*x^5-44*x^3*y^2-14*x*y^4+40*x^3*y+24*x*y^3+16*x^3+8*x*y^2-16*x*y
8*x^6*y+24*x^4*y^3+24*x^2*y^5+8*y^7-2*x^6-18*x^4*y^2-30*x^2*y^4-14*y^6-22*x^4*y-28*x^2*y^3-6*y^5+10*x^4+36*x^2*y^2+10*y^4+8*x^2*y-8*x^2
